I've owned the game now for over 2 months and have never been able to voice chat. It always just tells me 'Voice chat is unavailable.' My NAT type is open, I've got all the Zenimax suggested additional ports open, I've reinstalled the game, talked to Xbox support, and just to cover my bases had them ship me a new headset. Still same result: Voice Chat Unavailable.
Is there something I'm missing? Some crucial secret to unlocking interaction with my fellow ESO players? I'm starting to get a wee bit frustrated, please help me out!